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Mutengo wakakwira wemabhatiri e-all-vanadium flow-through redox (VRFBs) unodzikamisa kushandiswa kwawo kwakapararira. Kuvandudza kinetics ye electrochemical reactions kunodiwa kuti kuwedzere simba chairo uye kushanda zvakanaka kweVRFB, nokudaro kuderedza mutengo we kWh weVRFB. Mubasa iri, hydrothermally synthesized tungsten oxide (HWO) nanoparticles, C76 neC76/HWO, zvakaiswa pama electrodes e carbon cloth uye zvakaedzwa se electrocatalysts yeVO2+/VO2+ redox reaction. Field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDX), high-resolution transmission electron microscopy (HR-TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), infrared Fourier transform Spectroscopy (FTIR) uye kuyera angle yekubatana. Zvakaonekwa kuti kuwedzerwa kweC76 fullerenes kuHWO kunogona kuvandudza electrode kinetics nekuwedzera conductivity yemagetsi uye kupa mapoka anoshanda e oxidized pamusoro payo, nokudaro zvichisimudzira VO2+/VO2+ redox reaction. HWO/C76 composite (50 wt% C76) yakaratidza kuva sarudzo yakanakisisa yeVO2+/VO2+ reaction neΔEp ye176 mV, nepo jira recarbon risina kurapwa (UCC) raive 365 mV. Pamusoro pezvo, HWO/C76 composite yakaratidza mhedzisiro yakakura pakuita kweparasitic chlorine evolution nekuda kweboka reW-OH functional.
Kushanda kwevanhu zvakanyanya uye kukurumidza kuchinja kwemaindasitiri kwakaita kuti pave nekudiwa kukuru kwemagetsi, kuri kuwedzera ne3% pagore. Kwemakumi emakore, kushandiswa kwakawanda kwemafuta efossil senzvimbo yesimba kwakakonzera kuburitswa kwemagasi egreenhouse anokonzera kudziya kwepasi rose, kusvibiswa kwemvura nemhepo, zvichityisidzira nharaunda yese. Nekuda kweizvozvo, kupinda kwesimba remhepo yakachena uye inogona kushandiswazve nezuva kunotarisirwa kusvika 75% yemagetsi ese panosvika 20501. Zvisinei, kana chikamu chemagetsi kubva kumagetsi anogona kushandiswazve chikadarika 20% yemagetsi ese anowanikwa, grid inova isina kugadzikana.
Pakati pemasisitimu ese ekuchengetera simba akadai sebhatiri rehybrid vanadium redox flow2, bhatiri re all-vanadium redox flow (VRFB) rakakura nekukurumidza nekuda kwezvakanakira zvaro zvakawanda uye rinoonekwa semhinduro yakanakisa yekuchengetedza simba kwenguva refu (anenge makore makumi matatu). ) Sarudzo dzakabatana nesimba rinogona kuvandudzwa4. Izvi zvinokonzerwa nekuparadzaniswa kwesimba nesimba, mhinduro nekukurumidza, hupenyu hwebasa hurefu, uye mutengo wakaderera wegore we $65/kWh zvichienzaniswa ne $93-140/kWh yemabhatiri eLi-ion nelead-acid uye 279-420 US dollars pa kWh. bhatiri zvakateerana 4.
Zvisinei, kutengeserana kwavo kukuru kuchiri kudziviswa nemitengo yavo yepamusoro yesystem capital, kunyanya nekuda kwemasero emagetsi 4,5. Saka, kuvandudza mashandiro emagetsi nekuwedzera kinetics yemaitiro maviri ehafu-element kunogona kuderedza saizi yemagetsi uye nekudaro kuderedza mutengo. Nokudaro, kutamiswa kwemaerekitironi nekukurumidza kuenda pamusoro pemagetsi kwakakosha, izvo zvinoenderana nekugadzirwa, kuumbwa uye chimiro cheelectrode uye zvinoda kugadziriswa kwakanyatsonaka6. Pasinei nekugadzikana kwakanaka kwemakemikari nemagetsi uye conductivity yakanaka yemagetsi emaerekitironi, kinetics dzavo dzisina kurapwa dzinononoka nekuda kwekushaikwa kwemapoka anoshanda eoxygen uye hydrophilicity7,8. Nokudaro, maerekitironi akasiyana-siyana anosanganiswa nemaerekitironi akavakirwa pacarbon, kunyanya maerekitironi nanostructures nemetal oxides, kuti vavandudze kinetics yemaerekitironi ese ari maviri, nokudaro vachiwedzera kinetics yeerekitironi yeVRFB.
Kuwedzera kune basa redu rekare paC76, takatanga tataura nezvekushanda kwakanaka kwemagetsi ekugadzira simbi iyi yeVO2+/VO2+, charge transfer, zvichienzaniswa nejira rekabhoni rakagadziriswa kupisa uye risina kugadziriswa. Kuramba kunoderedzwa ne99.5% uye 97%. Kushanda kwekabhoni kwezvinhu zve VO2+/VO2+ reaction zvichienzaniswa neC76 kunoratidzwa muTable S1. Kune rumwe rutivi, ma oxide esimbi akawanda akadai seCeO225, ZrO226, MoO327, NiO28, SnO229, Cr2O330 uye WO331, 32, 33, 34, 35, 36, 37 akashandiswa nekuda kwekuwedzera kwemvura uye kushanda kweoxygen yakawanda. , 38. , 38. Basa rekugadzira simbi idzi mu VO2+/VO2+ reaction rinoratidzwa muTable S2. WO3 yakashandiswa mumabasa akawanda nekuda kwemutengo wayo wakaderera, kugadzikana kwakanyanya mu acidic media, uye high catalytic activity31,32,33,34,35,36,37,38. Zvisinei, kuvandudzika kwe cathodic kinetics nekuda kweWO3 hakuna kukosha. Kuti WO3 ivandudze conductivity, mhedzisiro yekushandisa tungsten oxide yakaderedzwa (W18O49) pa cathodic activity yakaedzwa38. Hydrated tungsten oxide (HWO) haisati yamboedzwa muVRFB applications, kunyangwe ichiratidza kuwedzera kwekushanda mu supercapacitor applications nekuda kwekukurumidzira cation diffusion zvichienzaniswa ne anhydrous WOx39,40. Bhatiri revanadium redox flow rechizvarwa chechitatu rinoshandisa mixed acid electrolyte inoumbwa neHCl neH2SO4 kuvandudza mashandiro ebhatiri uye kuvandudza solubility uye kugadzikana kwevanadium ions mu electrolyte. Zvisinei, maitiro ekushanduka kwechlorine kubva muzvipembenene ave chimwe chezvinhu zvakaipa zvechizvarwa chechitatu, saka kutsvaga nzira dzekudzivirira maitiro ekuongorora chlorine kwave chinhu chinonyanya kukosheswa nemapoka akati wandei ekutsvaga.
Pano, bvunzo dzekuita VO2+/VO2+ dzakaitwa pamacomposites eHWO/C76 akaiswa pamaelectrodes ecarbon cloth kuitira kuti pave nekuenzanisa pakati pemagetsi ekufambisa macomposites uye redox kinetics yenzvimbo yeelectrode ukuwo vachidzvinyirira mhinduro yeparasitic chlorine evolution. (CER). Hydrated tungsten oxide (HWO) nanoparticles dzakagadzirwa nenzira iri nyore yehydrothermal. Kuedza kwakaitwa mu mixed acid electrolyte (H2SO4/HCl) kutevedzera VRFB yechizvarwa chechitatu (G3) kuti ishande uye kuongorora mhedzisiro yeHWO paparasitic chlorine evolution reaction.
Vanadium(IV) sulfate hydrate (VOSO4, 99.9%, Alfa-Aeser), sulfuric acid (H2SO4), hydrochloric acid (HCl), dimethylformamide (DMF, Sigma-Aldrich), polyvinylidene fluoride (PVDF, Sigma)-Aldrich), sodium Tungsten oxide dihydrate (Na2WO4, 99%, Sigma-Aldrich) uye hydrophilic carbon cloth ELAT (Fuel Cell Store) zvakashandiswa mukudzidza uku.
Tungsten oxide (HWO) yakagadzirwa nehydrothermal reaction 43 umo 2 g yemunyu weNa2WO4 yakanyungudutswa mu12 ml yeH2O kuti ipe mhinduro isina ruvara, ipapo 12 ml ye2 M HCl yakawedzerwa dropwise kuti ipe suspension yero yakachenuruka. Slurry yakaiswa muTeflon coated stainless steel autoclave ndokuchengetwa muovheni pa180°C. kwemaawa matatu kuti iite hydrothermal reaction. Zvasara zvakaunganidzwa nekusefa, zvakagezwa katatu neethanol nemvura, zvakaomeswa muovheni pa70°C kwemaawa anopfuura matatu, uye zvakazosanganiswa kuti zvipe upfu hweHWO hwebhuruu-grey.
Maelectrode ekabhoni asina kugadziriswa (CCT) akawanikwa (asina kugadziriswa) akashandiswa sezvaari kana kuti akapiswa muchubhu yemoto pa450°C mumhepo nechiyero chekudziya che15 ºC/min kwemaawa gumi kuti awane maCC akabatwa (TCC). sezvakatsanangurwa muchinyorwa chapfuura. 24. UCC neTCC zvakachekwa kuita maelectrode ane upamhi hwe1.5 cm uye kureba kwe7 cm. Ma suspension eC76, HWO, HWO-10% C76, HWO-30% C76 uye HWO-50% C76 akagadzirwa nekuwedzera 20 mg .% (~2.22 mg) yePVDF binder ku ~1 ml DMF uye akashandiswa sonic kweawa imwe chete kuti awedzere kufanana. 2 mg yeC76, HWO uye HWO-C76 composites yakaiswa zvakatevedzana kune nzvimbo yeUCC active electrode ine inenge 1.5 cm2. Ma catalyst ese akaiswa pama electrodes eUCC uye TCC yakashandiswa pakuenzanisa chete, sezvo basa redu rekare rakaratidza kuti kurapwa kwekupisa kwaisadiwa24. Kugadzikana kwechiratidzo kwakawanikwa nekukwesha 100 µl ye suspension (load 2 mg) kuti ive nemhedzisiro yakaenzana. Zvadaro ma electrodes ese aomeswa muovheni pa60° C. husiku hwese. Ma electrodes anoyerwa mberi nekumashure kuti ave nechokwadi chekuti stock loading yakarurama. Kuti ive nenzvimbo yakati yejometri (~1.5 cm2) uye kudzivirira kukwira kwevanadium electrolyte ku electrode nekuda kwe capillary effect, paraffin yakatetepa yakaiswa pamusoro pechinhu chinoshanda.
Kuongororwa kwema electron microscopy (FESEM, Zeiss SEM Ultra 60, 5 kV) kwakashandiswa kuona chimiro cheHWO surface. Spectrometer ye energy dispersive X-ray ine Feii8SEM (EDX, Zeiss Inc.) yakashandiswa kugadzira HWO-50%C76 elements pa UCC electrodes. Microscope ye transmission electron ine resolution repamusoro (HR-TEM, JOEL JEM-2100) inoshanda pavoltage inokurumidza ye200 kV yakashandiswa kugadzira mifananidzo yema HWO particles ne diffraction rings. Software ye Crystallography Toolbox (CrysTBox) inoshandisa ringGUI function kuongorora HWO ring diffraction pattern uye kuenzanisa mhedzisiro ne XRD pattern. Maumbirwo uye graphitization yeUCC neTCC zvakaongororwa neX-ray diffraction (XRD) pachiyero che2.4°/min kubva pa5° kusvika 70° neCu Kα (λ = 1.54060 Å) uchishandisa Panalytical X-ray diffractometer (Model 3600). XRD yakaratidza maumbirwo ekristaro uye chikamu cheHWO. Software yePANalytical X'Pert HighScore yakashandiswa kuenzanisa maHWO peaks nematungsten oxide maps anowanikwa mudatabase45. Mhedzisiro yeHWO yakaenzaniswa neTEM results. Kuumbwa kwemakemikari nemamiriro emasamples eHWO zvakaongororwa neX-ray photoelectron spectroscopy (XPS, ESCALAB 250Xi, ThermoScientific). Software yeCASA-XPS (v 2.3.15) yakashandiswa pakubvisa peak convolution uye kuongorora data. Kuti tione mapoka ekushanda kwepamusoro eHWO neHWO-50%C76, kuyerwa kwakaitwa uchishandisa Fourier transform infrared spectroscopy (FTIR, Perkin Elmer spectrometer, uchishandisa KBr FTIR). Mhedzisiro yacho yakaenzaniswa neXPS. Kuyerwa kwekona yekubatana (KRUSS DSA25) kwakashandiswawo kuratidza kugona kwemvura kwemaelectrodes.
Pakuyerwa kwese kwemagetsi, panoshandiswa Biologic SP 300 workstation. Cyclic voltammetry (CV) uye electrochemical impedance spectroscopy (EIS) zvakashandiswa kudzidza kinetics ye electrode ye VO2+/VO2+ redox reaction uye mhedzisiro ye reagent diffusion (VOSO4(VO2+)) pa reaction rate. Nzira dzese dziri mbiri dzakashandisa three-electrode cell ine electrolyte concentration ye 0.1 M VOSO4 (V4+) mu 1 M H2SO4 + 1 M HCl (musanganiswa we acids). Data rese re electrochemical rakapihwa rakagadziriswa IR. Electrode ye calomel yakaguta (SCE) uye platinum (Pt) coil zvakashandiswa se reference uye counter electrode, zvichiteerana. PaCV, scan rates (ν) ye5, 20, uye 50 mV/s yakaiswa paVO2+/VO2+ potential window ye (0–1) V vs. SCE, yozogadziriswa kuti SHE iite plot (VSCE = 0.242 V vs. HSE). Kuti tidzidze kuchengetedza kwe electrode activity, repeated cyclic CVs dzakaitwa paν 5 mV/s yeUCC, TCC, UCC-C76, UCC-HWO, uye UCC-HWO-50% C76. Pakuyerwa kweEIS, frequency range yeVO2+/VO2+ redox reaction yaive 0.01-105 Hz, uye voltage perturbation pa open-circuit voltage (OCV) yaive 10 mV. Kuedza kwega kwega kwakadzokororwa ka2-3 kuti kuve nechokwadi chekuti mhedzisiro yacho yakabatana. Heterogeneous rate constants (k0) yakawanikwa neNicholson method46,47.
Tungsten oxide (HVO) yakanyungudutswa yakagadzirwa zvinobudirira nenzira ye hydrothermal. Mufananidzo weSEM uri pamufananidzo 1a unoratidza kuti HWO yakachengetwa ine mapoka e nanoparticles ane saizi dziri pakati pe25-50 nm.
Patani yeX-ray diffraction yeHWO inoratidza peaks (001) uye (002) pa ~23.5° uye ~47.5°, zvichiteerana, izvo zvinoonekwa se nonstoichiometric WO2.63 (W32O84) (PDF 077–0810, a = 21.4 Å, b = 17.8 Å, c = 3.8 Å, α = β = γ = 90°), iyo inoenderana neruvara rwavo rwebhuruu rwakajeka (Mufananidzo 1b) 48.49. Mamwe peaks paanenge 20.5°, 27.1°, 28.1°, 30.8°, 35.7°, 36.7° uye 52.7° akapihwa ku (140), (620), (350), (720), (740), (560°). ) ) uye (970) diffraction planes orthogonal to WO2.63, zvichiteerana. Nzira imwecheteyo yekugadzira yakashandiswa naSongara et al. 43 kuti vawane chigadzirwa chichena, icho chakakonzerwa nekuvapo kweWO3(H2O)0.333. Zvisinei, mubasa iri, nekuda kwemamiriro akasiyana, chigadzirwa chebhuruu-grey chakawanikwa, zvichiratidza kuti WO3(H2O)0.333 (PDF 087-1203, a = 7.3 Å, b = 12.5 Å, c = 7 .7 Å, α = β = γ = 90°) uye chimiro chakaderedzwa chetungsten oxide. Kuongororwa kwe semiquantitative uchishandisa X'Pert HighScore software kwakaratidza 26% WO3(H2O)0.333:74% W32O84. Sezvo W32O84 iine W6+ neW4+ (1.67:1 W6+:W4+), huwandu hunofungidzirwa hweW6+ neW4+ hunosvika 72% W6+ uye 28% W4+, zvichiteerana. Mifananidzo yeSEM, 1-second XPS spectra padanho renucleus, mifananidzo yeTEM, FTIR spectra, uye Raman spectra yeC76 particles zvakaratidzwa munyaya yedu yapfuura. Sekureva kwaKawada et al., 50,51 X-ray diffraction yeC76 mushure mekubviswa kwetoluene yakaratidza chimiro cheFCC chemonoclinic.
Mifananidzo yeSEM ​​iri pamufananidzo 2a na b inoratidza kuti HWO neHWO-50%C76 zvakaiswa zvakanaka pamusoro uye pakati pemafiber ekabhoni eUCC electrode. Mamepu eEDX element etungsten, kabhoni, uye oksijeni pamifananidzo yeSEM ​​iri pamufananidzo 2c anoratidzwa pamufananidzo 2d-f zvichiratidza kuti tungsten nekabhoni zvakasanganiswa zvakaenzana (zvichiratidza kugoverwa kwakafanana) pamusoro pese peelectrode uye composite haina kuiswa zvakaenzana nekuda kwemhando yenzira yekuisa.
Mifananidzo yeSEM ​​yezvimedu zveHWO zvakachengetwa (a) uye zvimedu zveHWO-C76 (b). EDX mepu paHWO-C76 yakatakurwa paUCC uchishandisa nzvimbo iri mumufananidzo (c) inoratidza kupararira kwetungsten (d), kabhoni (e), uye okisijeni (f) mumuenzaniso.
HR-TEM yakashandiswa pamifananidzo yekuwedzera kukuru uye ruzivo rwekristalographic (Mufananidzo 3). HWO inoratidza chimiro chenanocube sezvakaratidzwa paMufananidzo 3a uye zvakajeka paMufananidzo 3b. Nekukudza nanocube yekupararira kwenzvimbo dzakasarudzwa, munhu anogona kuona chimiro chegrating uye mapani ediffraction anogutsa mutemo weBragg, sezvakaratidzwa paMufananidzo 3c, uyo unosimbisa kristallinity yezvinhu. Mumufananidzo weFig. 3c unoratidza daro d 3.3 Å rinoenderana ne (022) uye (620) mapani ediffraction anowanikwa muzvikamu zveWO3(H2O)0.333 uye W32O84, zvichiteerana 43,44,49. Izvi zvinoenderana ne XRD analysis yakatsanangurwa pamusoro (Mufananidzo 1b) sezvo daro regrating plane rakaonekwa d (Mufananidzo 3c) rinoenderana ne XRD peak yakasimba mumuenzaniso weHWO. Mhete dzemuenzaniso dzinoratidzwawo pamufananidzo 3d, apo rin'i yega yega inoenderana nepurani yakasiyana. Mapurani eWO3(H2O)0.333 neW32O84 ane mavara machena nebhuruu, zvichiteerana, uye misoro yavo yeXRD inoenderana inoratidzwawo muMufananidzo 1b. Mhete yekutanga inoratidzwa mudhayagiramu yemhete inoenderana nepeji yekutanga yakanyorwa mu x-ray pattern ye (022) kana (620) diffraction plane. Kubva pa (022) kusvika ku (402) rings, d-spacing values ​​​​i3.30, 3.17, 2.38, 1.93, uye 1.69 Å, zvinoenderana neXRD values ​​​​ye3.30, 3.17, 2, 45, 1.93. uye 1.66 Å, inova yakaenzana ne44, 45, zvichiteerana.
(a) Mufananidzo weHR-TEM weHWO, (b) unoratidza mufananidzo wakakura. Mifananidzo yemapuranga egiringi inoratidzwa mu (c), mufananidzo uri mukati (c) unoratidza mufananidzo wakakura wemapuranga uye pitch d ye 0.33 nm inoenderana nemapuranga (002) uye (620). (d) HWO ring pattern inoratidza mapurani ane chekuita neWO3(H2O)0.333 (chena) uye W32O84 (bhuruu).
Kuongororwa kweXPS kwakaitwa kuti kuonekwe mamiriro emakemikari epamusoro uye mamiriro e oxidation e tungsten (Mifananidzo S1 ne4). Iyo wide range XPS scan spectrum ye synthesized HWO inoratidzwa muMufananidzo S1, ichiratidza kuvapo kwe tungsten. XPS narrow-scan spectra ye W 4f ne O 1s core levels inoratidzwa muMifananidzo 4a ne b, zvichiteerana. W 4f spectrum inopatsanurwa kuita maviri spin-orbit doublets anoenderana nesimba re binding re W oxidation state. uye W 4f7/2 pa 36.6 ne 34.9 eV imhando ye W4+ state ye 40, zvichiteerana. )0.333. Data rakagadzirwa rinoratidza kuti maatomu percentages e W6+ ne W4+ ari 85% ne 15%, zvichiteerana, ari pedyo ne values ​​​​inofungidzirwa kubva ku data re XRD tichifunga nezve mutsauko uripo pakati penzira mbiri idzi. Nzira dzese dziri mbiri dzinopa ruzivo rwehuwandu nekururama kwakaderera, kunyanya XRD. Uyewo, nzira mbiri idzi dzinoongorora zvikamu zvakasiyana zvechinhu ichi nekuti XRD inzira yehukuru nepo XPS iri nzira yepamusoro inongosvika nanometers shoma chete. O 1s spectrum yakakamurwa kuita peaks mbiri pa533 (22.2%) uye 530.4 eV (77.8%). Yekutanga inoenderana neOH, uye yechipiri inoenderana neoxygen bonds mu lattice muWO. Kuvapo kwemapoka anoshanda eOH kunoenderana nehunyoro hweHWO.
Ongororo yeFTIR yakaitwawo pasampuli mbiri idzi kuti iongorore kuvapo kwemapoka anoshanda uye mamorekuru emvura anobatanidza muchimiro cheHWO chakanyoroveswa. Mhedzisiro yacho inoratidza kuti mhedzisiro yesample yeHWO-50% C76 uye FT-IR HWO zvakafanana nekuda kwekuvapo kweHWO, asi kusimba kwemisoro kunosiyana nekuda kwehuwandu hwakasiyana hwesample inoshandiswa pakugadzirira kuongororwa (Mufananidzo 5a). ) HWO-50% C76 inoratidza kuti misoro yese, kunze kwepeak ye tungsten oxide, ine chekuita nefullerene 24. Zvakadzama mumufananidzo 5a zvinoratidza kuti sampuli dzese dziri mbiri dzinoratidza band rakasimba kwazvo pa ~710/cm rinokonzerwa neOWO stretching oscillations muchimiro cheHWO lattice, nefudzi rakasimba pa ~840/cm rinokonzerwa neWO. Pakutambanudza vibrations, band rakapinza pa 1610/cm rinokonzerwa nekukotama kweOH, nepo broad absorption band pa 3400/cm rinokonzerwa nekutambanudza vibrations yeOH mumapoka ehydroxyl43. Mhedzisiro iyi inoenderana neXPS spectra iri muMifananidzo 4b, uko mapoka eWO functional anogona kupa nzvimbo dzinoshanda dzeVO2+/VO2+ reaction.
Kuongororwa kweFTIR kweHWO neHWO-50% C76 (a), kwakaratidza mapoka anoshanda uye kuyerwa kwekona yekubatana (b, c).
Boka reOH rinogonawo kukonzera VO2+/VO2+ reaction, ukuwo richiwedzera hydrophilicity ye electrode, nokudaro richisimudzira mwero wekupararira uye kutamiswa kwema electron. Sezvakaratidzwa, sample yeHWO-50% C76 inoratidza peak yekuwedzera yeC76. Ma peaks ari pa ~2905, 2375, 1705, 1607, uye 1445 cm3 anogona kupihwa ku CH, O=C=O, C=O, C=C, uye CO stretching vibrations, zvichiteerana. Zvinozivikanwa kuti mapoka e oxygen functional C=O naCO anogona kushanda senzvimbo dzinoshanda dze redox reactions ye vanadium. Kuti vaedze uye vaenzanise wettability yema electrodes maviri, kuyerwa kwe contact angle kwakatorwa sezvakaratidzwa muFig. 5b,c. HWO electrode yakabva yangotora madonhwe emvura, zvichiratidza superhydrophilicity nekuda kwe OH functional groups dziripo. HWO-50% C76 inonyanya hydrophobic, ine contact angle yeinenge 135° mushure memasekonzi gumi. Zvisinei, mukuyera kwemagetsi, electrode yeHWO-50%C76 yakanyorova zvachose munguva isingasviki miniti. Kuyera kwekunyorova kunoenderana nemhedzisiro yeXPS neFTIR, zvichiratidza kuti mapoka akawanda eOH pamusoro peHWO anoita kuti ive inonyungudika zvakanyanya.
Maitiro eVO2+/VO2+ eHWO neHWO-C76 nanocomposites akaedzwa uye zvaitarisirwa kuti HWO yaizodzvinyirira kushanduka kwechlorine mukuita kweVO2+/VO2+ mu mixed acid, uye C76 yaizowedzera catalyst iyo VO2+/VO2+ redox reaction inodiwa. %, 30%, uye 50% C76 muHWO suspensions uye CCC yakaiswa pama electrodes ine huwandu hwese hwe2 mg/cm2.
Sezvakaratidzwa pamufananidzo 6, kinetics yeVO2+/VO2+ reaction pamusoro pe electrode yakaongororwa neCV mu mixed acidic electrolyte. Ma currents anoratidzwa seI/Ipa kuti zvive nyore kuenzanisa ΔEp neIpa/Ipc kune catalysts dzakasiyana zvakananga pagirafu. Data renzvimbo iripo rinoratidzwa paMufananidzo 2S. Pamufananidzo 6a inoratidza kuti HWO inowedzera zvishoma mwero we electron transfer we VO2+/VO2+ redox reaction pamusoro pe electrode uye inodzvinyirira reaction ye parasitic chlorine evolution. Zvisinei, C76 inowedzera zvakanyanya mwero we electron transfer uye inokonzeresa chlorine evolution reaction. Nokudaro, composite yakagadzirwa zvakanaka yeHWO neC76 inotarisirwa kuva nebasa rakanakisisa uye kugona kukuru kwekudzivirira chlorine evolution reaction. Zvakawanikwa kuti mushure mekuwedzera huwandu hweC76, electrochemical activity yema electrodes yakavandudzika, sezvinoratidzwa nekudzikira kweΔEp uye kuwedzera kweIpa/Ipc ratio (Table S3). Izvi zvakasimbiswawo neRCT values ​​​​yakatorwa kubva muNyquist plot muFig. 6d (Table S3), iyo yakawanikwa ichidzikira nekuwedzera kweC76 content. Izvi zvinoenderanawo nekudzidza kwaLi, umo kuwedzerwa kwemesoporous carbon kumesoporous WO3 kwakaratidza kuvandudzwa kwechaja transfer kinetics paVO2+/VO2+35. Izvi zvinoratidza kuti reaction yakananga inogona kutsamira zvakanyanya pa electrode conductivity (C=C bond) 18, 24, 35, 36, 37. Izvi zvinogonawo kunge zvichikonzerwa nekuchinja kwe coordination geometry pakati pe [VO(H2O)5]2+ uye [VO2(H2O)4]+, C76 inoderedza reaction overvoltage nekuderedza simba re tissue. Zvisinei, izvi zvingasagoneke nema HWO electrodes.
(a) Maitiro e cyclic voltammetric (ν = 5 mV/s) e VO2+/VO2+ reaction ye UCC ne HWO-C76 composites ane HWO:C76 ratios dzakasiyana mu 0.1 M VOSO4/1 M H2SO4 + 1 M HCl electrolyte. (b) Randles-Sevchik uye (c) Nicholson VO2+/VO2+ nzira yekuongorora kushanda kwe diffusion uye kuwana k0(d) values.
HWO-50% C76 haina kungoratidza chete chiitiko chemagetsi chakafanana neC76 cheVO2+/VO2+ reaction, asi, zvinonakidza zvikuru, yakadzorawo kushanduka kwechlorine zvichienzaniswa neC76, sezvakaratidzwa muFig. 6a, uye inoratidzawo Smaller Semicircle muFig. 6d (low RCT). C76 yakaratidza Ipa/Ipc yakakwira kupfuura HWO-50% C76 (Table S3), kwete nekuda kwekuvandudzwa kwe reaction reversibility, asi nekuda kwekukwirira kwe chlorine reduction reaction neSHE pa1.2 V. Kushanda kwakanakisa kweHWO- Iyo 50% C76 inokonzerwa ne synergistic effect pakati peC76 ine negative charge highly conductive uye wettability yakakwira uye W-OH catalytic functionality paHWO. Kubuda kwechlorine kushoma kuchavandudza kushanda kwekuchaja kwesero rakazara, nepo kinetics iri nani ichavandudza kushanda kwesero rakazara.
Zvichienderana ne equation S1, kune reaction inodzoserwa kumashure (relatively slow electron transfer) inodzorwa nekupararira, peak current (IP) inoenderana nehuwandu hwema electron (n), electrode area (A), diffusion coefficient (D), nhamba ye electron transfer coefficient (α) uye scanning speed (ν). Kuti tidzidze maitiro ekudzora diffusion ezvinhu zvakaedzwa, hukama huripo pakati pe IP ne ν1/2 hwakarongwa uye hwakaratidzwa muFig. 6b. Sezvo zvinhu zvese zvichiratidza hukama hwakatsetseka, reaction inodzorwa nekupararira. Sezvo VO2+/VO2+ reaction iri quasi-reversible, slope yemutsetse inoenderana ne diffusion coefficient uye kukosha kwe α (equation S1). Sezvo kupararira kwehuwandu hwemagetsi kuchigara kuripo (≈ 4 × 10–6 cm2/s)52, musiyano uripo mumutsetse unoratidza zvakananga kukosha kwakasiyana kweα, uye nokudaro chiyero chekutamiswa kwemaerekitironi pamusoro peelectrode, icho chinoratidzwa kuC76 neHWO -50% C76 Steepest slope (chiyero chepamusoro chekutamiswa kwemaerekitironi).
MaWarburg slopes (W) akaverengerwa ma frequency akaderera anoratidzwa muTable S3 (Mufananidzo 6d) ane ma values ​​​​ari pedyo ne1 yezvinhu zvese, zvichiratidza kupararira kwakakwana kwe redox species uye zvichisimbisa maitiro e linear eIP zvichienzaniswa ne ν1/ 2. CV inoyerwa. Kune HWO-50% C76, Warburg slope inotsauka kubva pa1 kusvika pa1.32, zvichiratidza kwete chete kupararira kwe semi-infinite kwe reagent (VO2+), asiwo mupiro we thin-layer behavior kune diffusion behavior nekuda kwe electrode porosity.
Kuti tiongorore zvakare kudzoserwa shure (chiyero chekufambisa maerekitironi) kweVO2+/VO2+ redox reaction, nzira yeNicholson quasi-reversible reaction yakashandiswawo kuona standard rate constant k041.42. Izvi zvinoitwa uchishandisa S2 equation kugadzira dimensionless kinetic parameter Ψ, inova basa reΔEp, sebasa reν-1/2. Tafura S4 inoratidza Ψ values ​​​​yakawanikwa yezvinhu zvega zve electrode. Mhedzisiro (Mufananidzo 6c) yakarongwa kuti iwane k0 × 104 cm/s kubva pakutsvedza kweploti yega yega uchishandisa Equation S3 (yakanyorwa padivi pemutsara wega wega uye inoratidzwa muTable S4). HWO-50% C76 yakawanikwa ine slope yepamusoro (Mufananidzo 6c), saka kukosha kwakanyanya kwe k0 i2.47 × 10–4 cm/s. Izvi zvinoreva kuti electrode iyi inowana kinetics inokurumidza, iyo inoenderana neCV neEIS results muFig. 6a na d uye muTable S3. Pamusoro pezvo, kukosha kwe k0 kwakawanikwawo kubva kuNyquist plot (Fig. 6d) yeEquation S4 uchishandisa RCT value (Table S3). Mhedzisiro iyi ye k0 kubva kuEIS yakapfupikiswa muTable S4 uye inoratidzawo kuti HWO-50% C76 inoratidza mwero wepamusoro we electron transfer nekuda kwe synergistic effect. Kunyangwe k0 values ​​​​dzakasiyana nekuda kwemavambo akasiyana enzira yega yega, dzichiri kuratidza kurongeka kwakafanana kwehukuru uye dzinoratidza kuenderana.
Kuti tinzwisise zvizere kinetics dzakanaka dzakawanikwa, zvakakosha kuenzanisa zvinhu zve electrode zvakanakisisa nema electrodes asina kuvharwa eUCC neTCC. Kune VO2+/VO2+ reaction, HWO-C76 haina kungoratidza ΔEp yakaderera uye kudzoka kuri nani, asi yakaderedzawo zvakanyanya parasitic chlorine evolution reaction kana ichienzaniswa neTCC, sezvakayerwa ne current pa1.45 V kana tichienzanisa neSHE (Mufananidzo 7a). Panyaya yekugadzikana, takafunga kuti HWO-50% C76 yakanga yakagadzikana panyama nekuti catalyst yakasanganiswa nePVDF binder ndokuzoiswa kuma electrodes e carbon cloth. HWO-50% C76 yakaratidza peak shift ye44 mV (degradation rate 0.29 mV/cycle) mushure me 150 cycles zvichienzaniswa ne 50 mV yeUCC (Mufananidzo 7b). Izvi zvingasava mutsauko mukuru, asi kinetics yema UCC electrodes inononoka zvikuru uye inoderera ne cycling, kunyanya kune reverse reactions. Kunyangwe kudzoserwa kweTCC kuri nani pane kweUCC, TCC yakawanikwa iine peak shift yakakura ye73 mV mushure me150 cycles, izvo zvinogona kunge zvichikonzerwa nehuwandu hwakawanda hwechlorine hwakaumbwa pamusoro payo. zvekuti catalyst inonamatira zvakanaka pamusoro peelectrode. Sezvinogona kuonekwa kubva kuma electrodes ese akaedzwa, kunyangwe ma electrodes asina catalysts anotsigirwa akaratidza kusagadzikana kwakasiyana-siyana kwe cycling, zvichiratidza kuti shanduko mukuparadzaniswa kwe peak panguva ye cycling inokonzerwa nekudzima kwechinhu kunokonzerwa nekuchinja kwemakemikari pane kuparadzaniswa kwe catalyst. Pamusoro pezvo, kana huwandu hwakawanda hwe catalyst hwaizoparadzaniswa kubva pamusoro pe electrode, izvi zvaizoguma nekuwedzera kukuru kwekuparadzaniswa kwe peak (kwete 44 mV chete), sezvo substrate (UCC) isingashande zvakanyanya kune VO2+/VO2+ redox reaction.
Kuenzanisa kweCV yezvinhu zvakanakisisa zve electrode zvichienzaniswa neUCC (a) uye kugadzikana kweVO2+/VO2+ redox reaction (b). ν = 5 mV/s yeCV dzese mu 0.1 M VOSO4/1 M H2SO4 + 1 M HCl electrolyte.
Kuti kuwedzere kukwezva kwehupfumi kwetekinoroji yeVRFB, kuwedzera nekunzwisisa kinetics yevanadium redox reactions kwakakosha kuti pave nekushandisa simba zvakanyanya. Macomposites HWO-C76 akagadzirwa uye mhedzisiro yavo ye electrocatalytic paVO2+/VO2+ reaction yakadzidzwa. HWO yakaratidza kuwedzera kushoma kwekinetic muma electrolytes akasanganiswa asi yakadzvinyirira zvakanyanya kushanduka kwechlorine. Zviyero zvakasiyana-siyana zveHWO:C76 zvakashandiswa kuwedzera kinetics yema electrodes akavakirwa paHWO. Kuwedzera C76 kuHWO kunovandudza kinetics ye electron transfer yeVO2+/VO2+ reaction pa electrode yakagadziriswa, iyo HWO-50% C76 ndiyo yakanakisa nekuti inoderedza kuramba kwe charge transfer uye inowedzera kudzvinyirira chlorine zvichienzaniswa neC76 neTCC deposit. . Izvi zvinokonzerwa ne synergistic effect pakati peC=C sp2 hybridization, OH neW-OH functional groups. Mwero wekuora mushure mekudzokororwa kweHWO-50% C76 wakawanikwa uri 0.29 mV/cycle, nepo mwero wekuora kweUCC neTCC uri 0.33 mV/cycle uye 0.49 mV/cycle, zvichiteerana, zvichiita kuti ive yakasimba zvikuru. mu mixed acid electrolytes. Mhedzisiro yakapihwa yakabudirira kuona zvinhu zve electrode zvinoshanda zvakanyanya zve VO2+/VO2+ reaction ne fast kinetics uye high stability. Izvi zvichawedzera output voltage, nokudaro zvichiwedzera kushanda zvakanaka kwe VRFB, nokudaro zvichideredza mutengo wekushambadzira kwayo mune ramangwana.
Dataseti dzakashandiswa uye/kana dzakaongororwa muchidzidzo chazvino dzinowanikwa kubva kuvanyori kana zvikakumbirwa zvine musoro.
Luderer G. nevamwe. Kufungidzira Mhepo neSimba reZuva muZviitiko zveSimba reMazuva Pasirose Risina Kabhoni: Nhanganyaya. kuchengetedza simba. 64, 542–551. https://doi.org/10.1016/j.eneco.2017.03.027 (2017).
Lee, HJ, Park, S. & Kim, H. Kuongororwa kwemhedzisiro yemvura inonaya muMnO2 pakushanda kwebhatiri revanadium/manganese redox flow. Lee, HJ, Park, S. & Kim, H. Kuongororwa kwemhedzisiro yemvura inonaya muMnO2 pakushanda kwebhatiri revanadium/manganese redox flow.Lee, HJ, Park, S. naKim, H. Kuongororwa kwemhedzisiro yeMnO2 deposition pakushanda kwebhatiri rekuyerera kwevanadium manganese redox. Lee, HJ, Park, S. & Kim, H. MnO2 沉淀对钒/锰氧化还原液流电池性能影响的分析. Lee, HJ, Park, S. naKim, H. MnO2Lee, HJ, Park, S. naKim, H. Kuongororwa kwemhedzisiro yeMnO2 deposition pakushanda kwemabhatiri evanadium manganese redox flow.J. Electrochemistry. Bato reSocialist. 165(5), A952-A956. https://doi.org/10.1149/2.0881805jes (2018).
Shah, AA, Tangirala, R., Singh, R., Wills, RGA & Walsh, FC Muenzaniso we dynamic unit cell webhatiri rinoyerera re all-vanadium. Shah, AA, Tangirala, R., Singh, R., Wills, RGA & Walsh, FC Muenzaniso we dynamic unit cell webhatiri rinoyerera re all-vanadium.Shah AA, Tangirala R, Singh R, Wills RG. naWalsh FK Muenzaniso unoshanduka wesero rekutanga rebhatiri rinoyerera revanadium. Shah, AA, Tangirala, R., Singh, R., Wills, RGA & Walsh, FC 全钒液流电池的动态单元电池模型. Shah, AA, Tangirala, R., Singh, R., Wills, RGA naWalsh, FC.Shah AA, Tangirala R, Singh R, Wills RG. naWalsh FK. Model dynamic cell yebhatiri re all-vanadium redox flow.J. Electrochemistry. Bato reSocialist. 158(6), A671. https://doi.org/10.1149/1.3561426 (2011).
Gandomi, YA, Aaron, DS, Zawodzinski, TA & Mench, MM Kuyerwa kwekugoverwa kwesimba remuchina uye modhi yakasimbiswa yebhatiri rekuyerera kwevanadium redox. Gandomi, YA, Aaron, DS, Zawodzinski, TA & Mench, MM Kuyerwa kwekugoverwa kwesimba remuchina uye modhi yakasimbiswa yebhatiri rekuyerera kwevanadium redox.Gandomi, Yu. A., Aaron, DS, Zavodzinski, TA naMench, MM Kuyerwa kwekugoverwa kwesimba remukati meimba uye modhi yakasimbiswa ye all-vanadium flow battery redox potential. Gandomi, YA, Aaron, DS, Zawodzinski, TA & Mench, MM 全钒氧化还原液流电池的原位电位分布测量和验证模型. Gandomi, YA, Aaron, DS, Zawodzinski, TA & Mench, MM. Chiyero nemuenzaniso wekusimbisa we 全vanadium oxidase redox液流液的原位 inogona kugovera.Gandomi, Yu. A., Aaron, DS, Zavodzinski, TA naMench, MM Kuyerwa kwemuenzaniso uye kusimbiswa kwekugoverwa kwenzvimbo yemabhatiri e-all-vanadium flow redox.J. Electrochemistry. Bato reSocialist. 163(1), A5188-A5201. https://doi.org/10.1149/2.0211601jes (2016).
Tsushima, S. & Suzuki, T. Kugadzira uye kutevedzera bhatiri revanadium redox flow rine munda wekuyerera wepakati pedhijitari wekugadzirisa magadzirirwo eelectrode. Tsushima, S. & Suzuki, T. Kugadzira uye kutevedzera bhatiri revanadium redox flow rine munda wekuyerera wepakati pedhijitari wekugadzirisa magadzirirwo eelectrode.Tsushima, S. naSuzuki, T. Kugadzira uye kutevedzera bhatiri revanadium redox rinoyerera kuburikidza nemagetsi rine kuyerera kwakapesana nepolarized kuitira kugadzirisa magadzirirwo emagetsi. Tsushima, S. & Suzuki, T. Tsushima, S. & Suzuki, T. 叉指流场的叉指流场的Vanadium Oxide Reduction Liquid Stream Battery的Modeling uye Simulation for Optimizing Electrode Structure.Tsushima, S. naSuzuki, T. Kugadzira uye kutevedzera mabhatiri evanadium redox flow ane nzvimbo dzekuyerera kwe counter-pin kuti pave nekugadziriswa kwechimiro che electrode.J. Electrochemistry. Bato reSocialist. 167(2), 020553. https://doi.org/10.1149/1945-7111/ab6dd0 (2020).
Sun, B. & Skyllas-Kazacos, M. Kugadziriswa kwezvinhu zve graphite electrode zvekushandisa vanadium redox flow battery—I. Sun, B. & Skyllas-Kazacos, M. Kugadziriswa kwezvinhu zve graphite electrode zvekushandisa vanadium redox flow battery—I.Sun, B. naScyllas-Kazakos, M. Kugadziriswa kwezvinhu zve graphite electrode zvemabhatiri evanadium redox - I. Sun, B. & Skyllas-Kazacos, M. 石墨电极材料在钒氧化还原液流电池应用中的改性——I. Sun, B. & Skyllas-Kazacos, M. Kugadziriswa kwezvinhu zve 石墨 electrode mukushandiswa kwevanadium oxidation reduction liquid battery——I.Sun, B. naScyllas-Kazakos, M. Kugadziriswa kwezvinhu zve graphite electrode zvekushandisa mumabhatiri evanadium redox - I.kurapwa nekupisa Electrochem. Acta 37(7), 1253-1260. https://doi.org/10.1016/0013-4686(92)85064-R (1992).
Liu, T., Li, X., Zhang, H. & Chen, J. Kufambira mberi kwezvinhu zvemagetsi pakushandisa mabhatiri evanadium flow (VFBs) nekuwedzera simba remagetsi. Liu, T., Li, X., Zhang, H. & Chen, J. Kufambira mberi kwezvinhu zvemagetsi pakushandisa mabhatiri evanadium flow (VFBs) nekuwedzera simba remagetsi.Liu, T., Li, X., Zhang, H. naChen, J. Kufambira mberi kwezvinhu zvemagetsi kumabhatiri evanadium flow (VFB) nekuwedzera simba remagetsi. Liu, T., Li, X., Zhang, H. & Chen, J. 提高功率密度的钒液流电池(VFB) 电极材料的进展. Liu, T., Li, X., Zhang, H. & Chen, J.Liu, T., Li, S., Zhang, H. naChen, J. Kufambira mberi muElectrode Materials yeVanadium Redox Flow Batteries (VFB) ine Kuwedzera kwePower Density.J. Simba Chemistry. 27(5), 1292-1303. https://doi.org/10.1016/j.jechem.2018.07.003 (2018).
Liu, QH nevamwe. Sero revanadium redox rinoyerera zvakanaka rine magadzirirwo eelectrode akagadzirwa zvakanaka uye sarudzo yemembrane. J. Electrochemistry. Socialist Party. 159(8), A1246-A1252. https://doi.org/10.1149/2.051208jes (2012).
Wei, G., Jia, C., Liu, J. & Yan, C. Carbon felt inotsigira carbon nanotubes catalysts composite electrode yekushandisa vanadium redox flow battery. Wei, G., Jia, C., Liu, J. & Yan, C. Carbon felt inotsigira carbon nanotubes catalysts composite electrode yekushandisa vanadium redox flow battery.Wei, G., Jia, Q., Liu, J. naYang, K. Ma electrode catalysts akagadzirwa nema carbon nanotubes ane carbon felt substrate yekushandisa mubhatiri re vanadium redox. Wei, G., Jia, C., Liu, J. & Yan, C. 用于钒氧化还原液流电池应用的碳毡负载碳纳米管催化剂复。 Wei, G., Jia, C., Liu, J. & Yan, C. Electrode yecarbon nanotube catalyst composite electrode inoshandiswa kuderedza kuyerera kwemvura muvanadium.Wei, G., Jia, Q., Liu, J. naYang, K. Electrode yakagadzirwa necarbon nanotube catalyst ine carbon felt substrate inoshandiswa mumabhatiri evanadium redox.J. Power. 220, 185–192. https://doi.org/10.1016/j.jpowsour.2012.07.081 (2012).
Moon, S., Kwon, BW, Chung, Y. & Kwon, Y. Mhedzisiro ye bismuth sulfate yakaputirwa pa acidified CNT pakushanda kwevanadium redox flow battery. Moon, S., Kwon, BW, Chung, Y. & Kwon, Y. Mhedzisiro ye bismuth sulfate yakaputirwa pa acidified CNT pakushanda kwevanadium redox flow battery.Moon, S., Kwon, BW, Chang, Y. naKwon, Y. Simba re bismuth sulfate rakaiswa pa oxidized CNTs pahunhu hwebhatiri revanadium redox rinoyerera kuburikidza. Moon, S., Kwon, BW, Chung, Y. & Kwon, Y. 涂在酸化CNT 上的硫酸铋对钒氧化还原液流电池性能的影响. Moon, S., Kwon, BW, Chung, Y. & Kwon, Y. Mhedzisiro ye bismuth sulfate pa CNT oxidation pakushanda kwebhatiri remvura inoyerera ichideredza vanadium oxidation.Moon, S., Kwon, BW, Chang, Y. naKwon, Y. Simba re bismuth sulfate rakaiswa pa oxidized CNTs pahunhu hwemabhatiri evanadium redox anoyerera kuburikidza ne flow-through.J. Electrochemistry. Bato reSocialist. 166(12), A2602. https://doi.org/10.1149/2.1181912jes (2019).
Huang R.-H. Pt/Multilayer Carbon Nanotube Modified Active Electrodes eVanadium Redox Flow Batteries. J. Electrochemistry. Socialist Party. 159(10), A1579. https://doi.org/10.1149/2.003210jes (2012).
Kahn, S. nevamwe. Mabhatiri evanadium redox anoshandisa ma electrocatalysts akashongedzwa nema nitrogen-doped carbon nanotubes anobva ku organometallic scaffolds. J. Electrochemistry. Socialist Party. 165(7), A1388. https://doi.org/10.1149/2.0621807jes (2018).
Khan, P. nevamwe. Mapepa eGraphene oxide nanosheets anoshanda sezvinhu zvakanaka kwazvo zvinoshanda nemagetsi zveVO2+/ uye V2+/V3+ redox couples mumabhatiri evanadium redox flow. Carbon 49(2), 693–700. https://doi.org/10.1016/j.carbon.2010.10.022 (2011).
Gonzalez Z. nevamwe. Kushanda kwakanaka kwemagetsi kwegraphene-modified graphite felt yevanadium redox battery applications. J. Power. 338, 155-162. https://doi.org/10.1016/j.jpowsour.2016.10.069 (2017).
González, Z., Vizireanu, S., Dinescu, G., Blanco, C. & Santamaría, R. Mahwindo ecarbon nanowalls akatetepa sezvinhu zve electrode zvakagadzirwa nano mumabhatiri evanadium redox flow. González, Z., Vizireanu, S., Dinescu, G., Blanco, C. & Santamaría, R. Mahwindo ecarbon nanowalls akatetepa sezvinhu zve electrode zvakagadzirwa nano mumabhatiri evanadium redox flow.González Z., Vizirianu S., Dinescu G., Blanco C. naSantamaria R. Mafirimu matete emadziro ecarbon nano sezvinhu zve electrode zvakagadzirwa nano mumabhatiri evanadium redox flow.González Z., Vizirianu S., Dinescu G., Blanco S. naSantamaria R. Mafirimu ecarbon nanowall sezvinhu zve electrode zvakagadzirwa nano mumabhatiri evanadium redox flow. Nano Energy 1(6), 833–839. https://doi.org/10.1016/j.nanoen.2012.07.003 (2012).
Opar, DO, Nankya, R., Lee, J. & Jung, H. Kabhoni yakafefetwa ine mativi matatu inochinja-chinja graphene yemabhatiri evanadium redox anoshanda zvakanaka. Opar, DO, Nankya, R., Lee, J. & Jung, H. Kabhoni yakafefetwa ine mativi matatu inochinja-chinja graphene yemabhatiri evanadium redox anoshanda zvakanaka.Opar DO, Nankya R., Lee J., naYung H. Kabhoni yakasanganiswa negraphene ine mativi matatu inoshandiswa pakugadzirisa mabhatiri evanadium redox ane simba guru. Opar, DO, Nankya, R., Lee, J. & Jung, H. 用于高性能钒氧化还原液流电池的三维介孔石墨烯改性碳池。 Opar, DO, Nankya, R., Lee, J. & Jung, H.Opar DO, Nankya R., Lee J., naYung H. Kabhoni yakasanganiswa negraphene ine mativi matatu inoshandiswa pakugadzirisa mabhatiri evanadium redox ane simba guru.Mutemo weElectrochem. Mutemo 330, 135276. https://doi.org/10.1016/j.electacta.2019.135276 (2020).